Solve the inequality using a sign chart.
< 9
A. x < - 
or x > 8
B. x < -8
C. -8 < x < - 
D. x < -8 or x > - 
Answer: D
Mathematics
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Solve the problem.Suppose that y is inversely proportional to x and that y = 32 when x = 9. Find the constant of proportionality k. Then, find y when x = 8.
A. k = 
; y = 
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C. k = 72; y = 9
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+ 9y dy + 7xz dz
What will be an ideal response?
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Find the area of the region specified in polar coordinates.the region enclosed by the curve r = 5 + cos ?
A. 17?
B. 
?
C. 13?
D. 26?
Mathematics